Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Que data o Milton Keynes Dons nomeou?
 ###Tabelas: CREATE TABLE spelling (spelling_id AUTO_INCREMENT PRIMARY KEY, A. Dyck VARCHAR, H. Rempel VARCHAR, R. Epp VARCHAR, J. Thiessen VARCHAR, J. J. Neufeld VARCHAR, Ed Zacharias VARCHAR, word meaning VARCHAR) CREATE TABLE managerial_changes (managerial_changes_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Outgoing manager VARCHAR, Manner of departure VARCHAR, Date of vacancy VARCHAR, Replaced by VARCHAR, Date of appointment VARCHAR, Position in table VARCHAR) CREATE TABLE english_open (english_open_id AUTO_INCREMENT PRIMARY KEY, Year Location VARCHAR, Mens Singles VARCHAR, Womens Singles VARCHAR, Mens Doubles VARCHAR, Womens Doubles VARCHAR) CREATE TABLE churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america (churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america_id AUTO_INCREMENT PRIMARY KEY, Adherents INT, Regular Attendees INT, % of adherents VARCHAR, Monasteries INT, Parishes INT, Average Parish Size INT) CREATE TABLE bachelorettes (bachelorettes_id AUTO_INCREMENT PRIMARY KEY, Season INT, Premiered VARCHAR, Bachelorette VARCHAR, Profile VARCHAR, Winner VARCHAR, Runner(s)-Up VARCHAR, Proposal VARCHAR)  
SELECT Date of appointment FROM managerial_changes WHERE Team = Milton Keynes Dons